Warp and jack thread-break-stopping device



Dec. i8, H923.

WARP AND JACK THREAD BREAK STOPPING DEVICE Filed Nov. 26. 1921 5 Sheets-Sheet l @een i8, 'm23 E. A. BLACK wARP AND JACK THREAD BREAK STOPPING DEVICE 1921 .a sheets-Sheet 2 Filed NOV. 26,

WARP AND JACK THREAD BREAK STOPPING DEVICE Filed NOV. 26

3 Sheets-Sheet 5 /NVEAA/TUR D xifi ERIC A. BLACK, F ORANGE, NEVJ JERSEY.

TARIF .AND JACK THREADLBREK-STOING DEVECE.

Application led November 26, 192,1. Serial No. 517,896.

To Y whom t may conce/rt.'

Be it known that l, ERIC A. Brillen, resit ing at Q32 Central Ave., Grange, in the county of Orange and State ot New Jersey, have invented certain new and useful lmprovements in Warp and Jack hread- Break-Stopping Devices, of'which the following is a specification.

The present intention relates to all operations in knitting or weaving machines whereby a plurality of threads, called the worin is run from a spool frame, called the jee-lr through perforated guide plates, commonly named cbrasses onto a winding drum, which forms the main part of' a device, called the warp mill.

ln these operations it oi'ten happens that one or more of the threads will brealr during the running-on ofthe warp which necessitates constant vigilance on the part of the ope-rater, the warpen ln such case he must stop the operation in good time, mend the brolren thread and start the machine again, or, as it is citen not ieasible any more to connect the broken thread to the lost end, he must be satislied with making "marlt7 on the newly attached thread and leave the monding to the weaven who later on beams oli the warp, that is, unwinds it again onto beams suitable to enter the weaving or knitting machine.

break will also sometimes escape the attention ot the warper and later on cause a waste of lahor and time consumed in going back to mend or mark. Moreover, as the warp null and the jacl: ol the customary construction cannot be stopped suddenly wthout cansino' the threads to run together and entangle i ith each other or the spools themselves, a hrealr will not seldom result in a sinash, that is, the breal'ingg; oi seve al other threads, thereby wasting time, laoor and material as well.

rl`here lia-ve been some attempts made, especially in electrically driven looms, to provide automatic and instantaneous emergency stop and brakes. based on theV principle that perfo ated weights, supported in normal position hy unbroken warp-threads will in oi a break or" their respective threads drop and forni an electrical Contact between two bars or terminals, ordinarily unconnected, closing thereby an electricV circuit, which in turn may energize a solenoid and thereby actuate a cut-out switch and a brake bringing the loom to a stop.

A These electric contact devices however, though apparently very sensitive, ol'ten -fail and refuse to work in practice, and for the very reason ci their sensi'tiveness. Ar good electrical Contact is only possible between clean surfaces, and if, as is inevitable in the operation ot textile machinery, the air is saturated with fine dust particles, this nonconductive dust or even coarser flull and lint will in time cover the terminal oars and thereby materially interfere with goed elecA trical engagement. In addition thereto the jarring oic looms or warp mills will citen dislocate the fallen weight again and break the disengaging` circuit, after it was momentarily closed.

These electrical Contact devices have theretore proved rather unreliable in action.

rlhe leading object of this invention to provide a thread-break stopping mechanism, which, while being` as sensitive as these eleotrical devices will at the saine time be solutely positive and un'liailing in its action.

A second and more particular object is to substitute relialble mechanical means for the more or less uncertain contact feature of the electrical devices, `while retaining and utilizing the convenience and quick acton oi the electrical current.

A third object is to devise a stopping mechanism which will not materially interfere with the smooth unwinding or rewinding of the threads.

i fourth object is to provide a brake vmechanism. which, when the motive impulse ot the warp drum is interre stantaneously bring the revol standstill.

A lilith object is the provision ot means to prevent the occurrence ot a sinasln namely oi means to simultaneously pnt a brake to all spools on jack and thereby to bringl the wholn warp to a quiet rest without undue slack or tension.

il sixth object is the arrangement oi parts in such a way that the startingagain of the warp mill is simplified and will succeed the interruptions, caused by the breaking and mending of the threads, without much manipulation or further loss of time.

A seventh object is to provide means for` 4putting all threads, running throughthe brasses, under the control of the stopping device in an easy timeand labor-saving manner.

These various objects are attained by thc novel mechanism and combination of parts, described hereafter and shown in the accompanying drawings, forming a material part of this disclosure, and in which Figure 1 is an assembled side view showing the warp mill, the motor drive for the same and the application of the described invention to these parts.

Figure 2 is a plan of these same installations, a part of the warp mill being broken away to reveal the brake mechanism underneath it.

Figure 3 is a continuation of the side view shown in Figure 1, illustrating a jaclt or spool frame provided with the novel means to put a simultaneous. brake to all its spools and partly forming the object of this speciiication.

Figure 4 is a top view of the jack frame with the greater number of spools removed and a part of the creel shown broken away, to better disclose the operative members of the jack brake.

Figure 5 is a detail view of thedrum brake showing the spindle of the thread-break stopping device and the pillow blocks in which the brake fork is journaled in section.

Figure 6 is an enlarged detail of the threaded end 'of the drive spindle, illustrating the drop weight funnel and the pitted drum rotating underneath it. i

Figure is an end view of these parts, the drive spindle being shown in section.

Figure 8 is an enlarged sectional view of the threads running through the brasscs, 'and the drop weights suspended above thc funnel shown in Figure 6.

Figure 9 is a partial front view of these brasses looking towards the jack.

Figure 10 illustrates the jack or creeibrake stops more fully in detail.

Figure 11 is a partial front view of th parts shown in Figurel 10 with the spool and its spindle omitted.

Referring to the drawings, the numeral 15 designates the warp drum, either keyed on oir-otherwise fixedly supported by the shaft 16, which rotates in the pillow blocks 17a and 17". In this instance the shaft 16, apart from one of its extreme ends 28, and the core in the warp drum are of square section (see 18) and form therefore a fixed combination.

The square shaft 16 is proifided with two sleeves 29a and29b, with scalare cores and l together.

inf/seis treme end 28 of the shaft 16 is upf set to the same diameter' 29", and both the shaft end 28 and the eXtreme end 29 of the sleeve 29b are threaded the samerway and in the same sense to receive the hexagonal nut 30 which couples the sleeve 29? and `the shaft end 28 These features and appurtenances of the drum shaft 16 Varehowever notindispensable and form no subject for any claim in this specification. Y

On the sleeve 29D, where it protrudesfrom the pillow block 17h, is also keyed or otherwise flxedly supporteda wheel 19,v connected by a chain or belt transmission 20 with the driving wheel 21, fixed onthe counter shaft 22. This countershaft may be supported or journalled in any convenient man ner, as circumstances may determine it, in

hangers, or, as shown here, in pedestals 23 and 24. On the countershaft 22 is mountedthespur gear 25 which together with the pinion 26 forms the gear transmission that connects the warp mill with the electric motor 27, which supplies the driving power to the warp drum, and on whose shaft 27a the pinion 26 ixedly'mounted.

The threads 40 (see Figuresl and) are coming from spools 44, running on spindles 45, mounted on horizontal creel beams 46 of a spool frame, a so v called jack. rlhis spool frame coinsists of a pair of Vstepped cheeks or sideboards 41, forming a terraced stand for the creel beams 46. The sideboards 41 on their part aremounted and supported by two pairs 0f upright columns 42a and 42D, resting on a base 43.

From the spools 44 the threads are run" through a set of common brasses 47 (Figure 1) onto the warp drum 15. So far the description has had to deal with minor and moreor less'customary parts V this shaft is loosely jaclreted by a bushing` or sleeve 51 so that it can be moved freely f in an axial direction through the saine. T he latter however, while being journalled in the as the sleeveupper part of the pedestal 24, and crossing at right angles the countershaft-Qff., is confined lengthwise by the collar 52, fastened on it by the set screw 53 onone end of theV pedestal bearing 60, and by the axially stationary half 54a of a Jaw clutch, fastenedy on 1t by the set screw ron the other end of the pedesta bearing The pedestal '24 Vmotor driven shaft.

therefore is provided with bearings for the shaft 22 as well as for the sleeve 51.

The latter bearing furthermore is split forklilre into halves, 60a and 601, to guide between them the spiral gear 61, which is mounted on a key, indicated by the short dotted line 61a (Figure 1) and let into a l eyway cut into the sleeve 51.

The other half of the jaw clutch, designated by numeral 541, is fastened by hey Se and set screw 541 to the shaft 50, so that it will engage or disengage with the axially stationary half 54a, as the shaft may move in one or the other direction respectively.

The spiral gear161 engages another spiral gear 62, iiXedly mounted on thec0untershaft 22, and receives its impulse from this The spirals of course must be cut in the proper sense, so as to eventually rotate the shaft 50 in the required peripheral direction, as indicated by the arrow 56.

On the shaft 50 is also mounted a hand wheel 63 by a set screw 63ZL and key 631 for throwing in the jaw clutch by means described hereafter. The end of Athe shaft is provided with a collar 65, fastened onto or integral with this shaft and shaped with an annular groove on its circumference around which the clamp 66 loosely fits, said clamp consisting of two semi-circular halves, bolted together with their outwardly flanged ends 66au and 661 and sandwiching between these ends the tips of a fork-like device 67, consisting of a pair of bars, twisted and coupled together in the manner illustrated.

In alignment with vthe axis of shaft 50 these bars, properly bent and rebent, form a guide slot 68, embracing the handle 69 of an electric knife switch, fulcrumed at 70 and adapted to engage the motor switch 71a or the cut-out switch 711, according as it is thrown one way or the other. lVhen pushed by hand into switch 71d it starts the motor 27, circuit connections being established in any well known manner, as indicated by the dash 'lines in Figure 1 which are continued in Figure 3, the positive terminal being designated by numeral 72, the negative by 73.

llVhen however the shaft V50, travelling baclmfards from the warp drum, disengages the jaw clutch, it simultaneously throws the handle 69 out of contact with switch 71a, and the impetus of the thrust as well as its own weight throws the handle into engagement with the cut-out switch 71.11. The arrangement and function of the switch and its, accessories will be explained late-r.

At a suitable point underneath the warp drum is provided on the shaft 50 furthermore a collar 80, adjustably mounted on a key 81 Y (see Figure 5). This collar is formed similar to collar 65 and is provided witl., similar accessories, namely two semicircular clamps 821l and 821, bolted together, as shown in Figure 5, but instead of the fork-like attachment they have two pintles 83 and 831, located half way between the bol-t couplings and diagonally to the shaft axis.

Underneath the collar are arranged two floor stands or pillow blocks 84a and Selb, in which is journalled the shaft 85, confined in axial position by the cotter pins 86a and 661. On this shaft is fulcruined a forlrlike device, consisting of the two onearmed levers 87a and 871. Their upper tips are provided with slots (see 88 Figure 1) which embrace the pintles 831 and 8311, while about half-way on their length they are shaped to form two journals 89a and 8911 for the shaft 90, secured therein by the upset head 91 and the set screw 92. This shaft is 'eX- tended sidewise, and on its reduced end 93 is fastened and held in place by a cotter pin 94 the free end of a band brake 95, which, as shown in Figure 2, surrounds a flanged brake wheel 96, keyed on the drum shaft 16, and with its other stationary end is attached in any convenient way to the rame-structure, for instance to a bolt or bracket 97", protruding from the support 97 of the pillow block 171.

The extreme end of shaft 50 is provided for some distance with a square thread 100 of rather steep pitch (Figures 1, 2 and 6) fitting into the hub 102 of the wheel 101. This wheel runs inball bearings, mounted in a pedestal 1031", 1031, which, if viewed at right angles to the shaft, resembles a reversed U and is split in the middle, normally to the shaft, to insert the wheel 101 into its journals 101111and 1041. Around the extending parts of the hub 102 and into the rim of the journal are cut ball races 105a and 1051, furnished with the necessary number of balls which are held in place by the annular flanges 106n and 1061, bolted on the pedestal part 103a and 1031.

After assembling the wheel and the ball bearing parts the split halves are bolted together by bolts 107 and heldin place by the foundation bolts 108. The halves 103a and 1031 can be extended on the descending side of the wheel 101 to form two halves of a flat tray or pan 109 for a purpose explained below. Y

ldlhere the two halves of the pedestal meet on the top, they leave a circular opening for .1l

llO

after the -funnelis inserted in such a manner that the pintles pass through theseslots, and

V neck ofa much larger funnel 112, whose mouth mayhave any sizerequired for the object explained hereafter, in this instance being shown in the shape of a narrow oblong 112a (Fig. 2).

Immediately above this funnel is suspended in any suitable way a set of special brasses 113, 114, and 115, shown in Figure 1 and more explicitly in Figure 3. j These brasses are rhombic plates, provided with pcrforations, arranged in rows, parallel to the sides, so that they straddle each other in a vertical projection.

The holes ineach plate register with the corresponding holes in the other two plates. The holes 113n and '115n in the two outer plates need only be large enough to guide thewarp threads without friction or tension. The first plate 113 is lined furthermore with annular bosses 113b through which the holes are drilled concentrically. These bosses lit loosely into the holes 114"L of plate 114, and their minimum height, above the plate 113 corresponds to the thickness of plate 114.

On each warp thread passing through the three consecutive holes is placed a rider in the form of a drop weight 116. These are spherical bodies perforated diametrically with slightly flattened surfaces 11(3"L and chainfored rims 1.16" where the perforations reach the surface. The width of the little spheres between the flattened ends is `equal to the thickness of plate 114, and their spherical diameter equals the diameter of the bosses 113".

On the circumference of wheel 101 is arranged at equal distances a plurality of nearly hemispherical pits 118, the spherical center lying j'ust a little below the periphery ofthe drum ina radial direction towards the drum center, so that-a drop weight 116, placed into one of these pits, has a trifle less than half of its volume protruding from the drum mantle. f

The operation of the device, as far as described.' is as follows:

The brasses 114 and 115, being removed from their supporting pegs 11,7, areV put upon each other, plate `114 being uppermost; then the drop weights 116 are placed into the openings 114a and flattened down so that their surfaces are flush with the upper sur- Vface of plate 114, and their perforations register with those of plate Y115.v Then this invaoie combination is replacedupon the pegs 1,17, in contact with plate 113,'the holes, weights and bosses'113b being in Aclose registration. Thereafter the warp threads, coming from the jack, Shown in Figure 3, are drawn with hooks through the brasses 113, 114, 115, and the ordinary brasses 47, which are used for making a gtie, in case of removing the warp from the drum.

If now the bosses on brass 113 are pressed through the openings in brass 114, it willbe i assuming of course, that the machine is inV operation, the knife switch 69 and the clutch n 54 beingthrown into engagement.

rlhis wheel 101, though not fastened on the'screw end 100, hasV been kept so far in rotation by it, as it is confined in an axial direction,and the friction of the thread against thehubl is far greater than the almost negligible friction in the ball races 115@ I and 115). .Now however the drop weight imbedded inoneA of the pits-113, forms a stop,

as it cannot pass through the narrow clear` ance between the circumference of the wheel 101 and the bottom of the fixed funnel110. The wheel therefore isA brought to a sudden halt, and the screw end, continuing its rotation, begins to back out of the hub, Y

Consequently the whole shaft 50 starts to travel axially backwards from the pedestal, simultaneously disengaging the clutch,

Vthrowingthe'knife switch out, disconnecting thereby the motor driveV and--by pulling the collarA backwardseactuates the bantl switch 95.

To set the machine in motion again, after the brokenV thread is tied or otherwise has been taken care of, the smallyfunnel is turned half way around so that the pintles 110b will pass through the slots 111b and 111IV and the funnel canbe lifted enough to let the ball 116 pass.

lf now the knife switch is thrown in again Y and the clutch is reengaged, the wheel 101 begins to rotateV again, and the. weight, go-

,ing along with it on the periphery, drops finally into the tray .109, to be picked up and reused again. i

It remains to visions are made to' prevent a smash, that is, to Vstop all spools on the jack simultaneously. Y Y f In'addition to the ordinaryparts of a jack frame mentioned already, the'invention provides a movable raclror carriagaunderbe described, i what Y pro-- neath and parallel to the creel frame, consisting of two side beams 120 with stepped tops, similar to the stationary side boards 41 of the jack. The steps 121 correspond to the number and position of the creel beams 46, though offset somewhat towards the rear or the frame. To each' step is fastened a tie beam or purlin 122, connecting the side beams 120.

ln addition these side beams are rigidly braced by the bottom. beams 123 and 123b, and under them are provided four roller casters 124, running on rails 125. The section of the-se rails and those of the rollers 124a must be such that they guide each other and prevent derailing, that is a flange 126 must be provided on the outside or inside ofeither the rollers or the rails. The rails are turned upwards at their ends 127, so as to limit the travel of the rollers to but a short distance. The rails must be mounted rigidly to the main ack frame in a suitable way, for example by being attached to two rail sills 128, extended between two headers 129a and 1291), which in turn are framed into the main structure of the jack.

Through the purlins or tie beams 122 are horizontal holes drilled, in the direction in which the carriage is movable, each hole corresponding to and placed underneath a spindie on the upper creel beam, and through each 0f these holes is drawn one end of a pliable looped wire 130, as shown in Figure 10.y These wires are bent to form av circular loop 13thL to ma-ke them resilient, and the end passing through the purlin 122 is threaded to receive a nut 1301 which, when tightened, secures the position of the wire in the purlin.

Behind each spindle 45 is a small hole 131 drilled, vertically through the creelbeams 46, through which can loosely pass a pin 132, provided with an eye 1323, which is slipped over the free end of the wire 130. It is evident from the detail, shown in Fig. 10, that this construction Arepresents an easily adjust-able arrangement, as slight change in the bend of wire 130 tends to alter the position of the push bar 132, thereby the pointvof contactbetween the latter and the bobbin and consequently the moment of braking action.

@n the rear end of the carriage is fastened with brackets 133 one or more solenoid cores '134 of soft iron, which extend partly into per: fe

144, thereafter to 145, and from 145 (Figure 3) to the positive terminal.

The operation of this brake device is as follows:

`Vxhen the knife switch 69 is thrown out by the forward thrust of the shaft 50, it falls back and engages with the switch blades shown at 71h. Thereby, as explained above, an elect-ric current is closed, energizing the solenoids 135 which in turn magnetically attract the soft iron cores 134 and thereby pull the carriage upwards. This movement brings all the little looped wires 130 into play, which simultaneously push all the pins 132 upV through their guide holes 131, and these pins, striking against the still rotating spools, arrest them and bring them to an instantaneous stop.

0n setting the machine in motion again the knife 69 is disengaged from the switch blades at 71h, the shunt current is broken, the solenoids de-energized, and the carriage dropped back into its lower position, pulling down the wires and pins with it and releasing thereby the spools to rotate freely.

Thus it will be seen, that all the different objects of this invention, as formerly stated, are attained in a simple eilicient manner and are realized in this labor-and-time-saving emergency-stop for warps and jacks.

@ther forms and modifications are pos` sible along the lines indicated, and it is therefore understood that the invention 1s not to be confined to the exact description and showing presented but rather to the claims appended hereto.

l claim:

1. A drum, upon which a thread is being wound, a mechanism to actuate said drum, a perforated ball, normally suspended by the upwinding thread, means whereby this ball, when released by the breaking of said thread, is directed during its free fall in such manner, that it ultimatelyv lodges as a wedge between two operating parts of said mechanism, acting thereby as a frictional stop to these parts, and means to transmit this stopping action onto the druin-actuating parts of said mechanism.

2. is drum onto which a thread is being wound, a brake to stop said drum, mechanisms to actuate said drum and said brake, a wheel, means to rotate said wheel, a stationary member in close but not touching proximity to the wheel, a perforated ball, normally suspended by the upwinding thread in such position that when the thread breaks, the ball is disconnected so as to act as a free falling body, means to direct the fall of this body in such manner that it is ultimately wedged between the stationary member and said rotating wheel, acting thereby as a brake-stop upon the wheel, and means connected with the wheel, to transmit this stopping action directly onto the mechanisms which actuate the drum and the brake. I Y

3. A threadbreak stopping apparatus, comprising a thread-winding drum, :in electric motor to actuate said drum, a brake to stop said drum, a switch' to direct and din vert electric current to and from the motor,

a rotating cylinder, operated by the motor,

`a perforated ball, normally suspended by the thread alone, which winds onto the drum, means, whereby, when the thread breaks and the ball is released, the latter is wedged atrthe end of its fall against the periphery of saidrotating cylinder, acting as a brake-stop upon it, and means, connected with this cylinder, whereby the switch, when said cylinder stops rotating, is changed fiom a motor feeding to a stopping position, substantially as shown.

4l. Thecombination with a thread-winding drum, an electric motor to operate said drum and a cut-out switch to start and stop the niotorgof a drop weight, normally suspeiidedv by the thread winding onto the drum, a vertically rotating wheel, having a depression on its peripheral surface, into which said drop weight would fit with part of its bulk protruding beyond the periphery, a casing, supporting the Vrotating wheel, a bottomless receptacle for the drop weight, attached to the top of the casing in suoli a position, that when the thread breaks and the weight, released from its suspended po-V sition, falls into the bottomless receptacle and, through it, reaches the depression on the periphery of the wheel, it will be wedged in aI clearance between thereceptacle and the periphery of said wheel, acting as a brake stop to the latter, a shaft, provided with a helix,y threaded through said wheel in such manner that, when the shaft turns, it normally rotates the wheel by friction, and when the latter is forcibly stopped, the shaft is moved in an axial direction, means to drive this shaft from the motor and means to transmit any axial movement of Y.

the shaft onto the eut-out switch, controlling the motor, for the purpose of throwing out this switch and stopping the motor and thereby the winding drum, substantially as Y vdescribed.`

5. The combination with a warp and ack thread-break stopping apparatus, lcomprising substantially a bobbin frame, a warp drum, a mechanism to drive the warp drum. a plurality of drop weights, normally sus'- v pended by the warp threads, and adapted Yto stop by the fall of one of them the mechanism, driving Vthe drum, a plate, having a plurality of holes to guide Vthe warp threads on their way from the bobbm frame to the Y drunn'and a support for this guide plate; of

YGE

two other thread-gi`iiding` plates ,movably held by said supports in parallel juxtaposition to the first-mentioned guide plate, and provided with thread-'guiding holes, registering with the holes in the first plate, the holesH in the new plate next to the first oneV beinglaige enough to serve as cells' for the sus` pended drop weights, and thethird outer late bein@ rovidedwith bosses concentric e P a to its tlireadguiding holes, fitting into the holes of the middle plate and Vadaptedthere- Y for to dislocate the drop weights from these holes simultaneously towards the first-mentioned guide-plate, when the other two plates are brought into contact, substantially asV shown, and for the purpose of placing. the drop weights into a tripping position, if their respective threadsshould break.

6. The combination with a thread-break stopping apparatus, comprising substan-j tially av thread-winding drum, an electric motor to drive the drum, a knife switch to -start and stop the motor, a drop weight,

suspended bythe thread, winding onto the drum, and adapted to' be used as a friction stop; of a shaft, horizontally mounted un-V derneath the drum and slidable in an-axial direction, one end of the 'shaftbeingV provided with a helix, means to rotate said shaft independently from its axial movement, a drive, connecting the rotating means with the electric motoi,iawheel, pitted on the circumference withl a .plurality of fle-- pi'essions,adapted to catch the falling drop weight, the hub of the wheel being threaded and slidably mounted on' the helix of the,V shaft, means to'arrest the wheel by friction in its joint movement Vwith the rotating shaft, when it contains the fallenv drop weight, thereby forcing the rotating shaft to travel anially outwards, in conformity with the friction of its helix within the threaded'liub of therwlieel, and a -non-ro-i;

tatable member, on the other 'end VVofthe shaft, mounted in alignment and universally 1 jointed with it, said member being adapted to push the knife` switch out ofcontact,

Vwhen axially moved, jointly vwith the rotat' ing shaft., lsubstantially as described and for the purposes shown.

i. The combination with a thread-,break stopping apparatus, comprising substantially :a threadswinding device, .an 4electric lever, forminglthe Vknife switch, may engage neven-le vfith eitner one ot them; an electric brake, acting upon the Winding device, means to connec the electric brake current with one or the said cut-outs, means to connect the motor current with the other cut-out, and means to bring the shalt, formed to act as a pushing and pulling bar, in operative engagement 'with said svvitch lever, so that, by pushing it in one direction or pulling it in the other dirfi'ftion, it will respectively cause the current tor the motor or that for the brake to be connected or disconnected.

S. lin a Warp and jacl; stopping mechanism, the combination with a tvarp-winding drum, means to iinpel said drum, and means to stop it; oit a bobbin trame, comprising substantially a base traine, a plurality of parallel stationary bobbin shelves, mounted on the hase traine, a plurality of vertical bolibin spindles, fastened on these shelves, travelling ifran'ie, 'orniing a rack, correspending to the extent and registering With the arrangement ol" these hobbin shelves, said travelling iii-ame being movable for a limited distance in two opposite directions, parallel to the plane oiu the b-obbin shelves, and guideaiily supported by the base trame underneath said shelves, a plurality of elements, guidably arranged aside the spindles in the bobbin shelves in such a manner, that each element, when moving in one direction, would strilre against and trictionally arrest one of the bobbin reels, should the same mounted on the respective spindle, and, when moving in the opposite direction would release said bobbin reel again, means to engage and actuate all these elements simultaneously from the travelling frame, and mea-ns connected with the drum-stopping means, mentioned above, to move the travelling trame in either direction for the purpose or actuating the above said elements, thus braking or releasing the bobbins simultaneously.

9. ln a Warp and jack stopping mechanisin, the combination with a Warp-Winding drum, a motor to iinpel the drum, and means to interrupt the motor current and stop the Winding drum; ot a bobbin frame comprising substantially a base trame, a plurality ot parallel stationary bobbin shelves, mounted on the base frame, a plurality of vertical bobbin spindles, fastened on these shelves, a travelling trame, forming a rack, corresponding to the extent and registering ivith the arrangement of these (itl bobhin shelves, said travelling frame being movable for a limited distance in tivo opposite directions, parallel to the plane of the bobbin shelves, and guidably supported by the base trame underneath said shelves, a plurality ot' elements, guidably arranged aside the spindles in the bobbin shelves in such a manner, that each element, when moving in one direction, would strike against and rictionally arrest one of the bobbin reels, should the saine be mounted on the respective spindle, and, when moving in the opposite direction would release said bobbin reel again, means to engage and ao tuate all these elements simultaneously from the travelling traine, a solenoid, a support for the solenoid, an iron plunger, attached to the travelling frame, and formed to serve as a magnetic core to the solenoid, the plunger and the solenoid being Sc arranged, that when the solenoid is energized and the plunger magnetically attracted, the latter pulls the travelling trame towards the solenoid, means to energize the solenoid, When the motor current is interrupted and thus to simultaneously operate the elements acting as bobbin brakes, and means to pul the travelling `trame back into a brake-re leasing position, When the solenoid is de energized.

l0. In a Warp and jack thread-break stopping mechanism the 'combination with a warp drum, a bobbin ltrame, comprising a plurality ot bobbin spindles, means to nnpel the Warp drum and automatic means to stop it, in ease that one or the warp threads breaks; of plurality or push rods, guidably arranged aside the spindles on the bobbin trame in such manner, that each rod is adapted to strike against and frictionally arrest a bobbin reel, should the same be mounted rotatably on the respective bobbin spindle, a plurality of adjustable and pliable elements, engaging with said push rods, and means, connected With the drum stopping means, to actuate all said elements contemporaneously for the purpose of braking the bobbin reels or releasing them again, substantially as described.

ll. ln a Warp and jack stopping mechanism, the combination with a Warp drum, a bobbin frame, an electric motor to impel the Warp drum, and a out-out switch to start and to stop the motor; ot an automatic electrical switch device, comprising a plurality ot push rods, slidably supported on the bobbin frame in such manner, that each rod is adapted to strike against the bobbins on the bobhin trame in an axial direction, exerting thereby a braking action, a plurality of adjustable resilient elements, engaging With said push rods, a movable support, on which said elements are mounted, and electromagnetic means toimpart a reciprocating motion to said support, transmitting such motion to the push rods by means ci said resilient elements.

l2. ln av Warp and jack stopping mechanisni, the combination with a warp drum, a bobbin trame, supporting a plurality of axially upright bobbins, means to impel the Warp drum and means to stop it; of an emergency brake. consisting of a plurality of se arately adjustable, cooperating push-ro s,

CII

adapted to stop all bobhns on said frzune nome to this speocztton n the presence of by lifting them simultaneously 1n an unal two subscribing witnesses, this 18th day of direction 'for the purpose of rotonally Oct-ober, 1921.

Stopping them, imparting :1n equal tension ERIC A. BLACK. 5 to all the Warp threads and preventing the Witnesses:

entanglng of thesame. Y AGUST LINDEMANN,

In testimony whereof. have signed my Y JOHN H. JERICHO. 

